Premium AC & Heating in Fairfield County
Alliance Heating & Cooling provides fast, reliable HVAC service across Fairfield County. From heating repairs to AC installations, our certified technicians keep homes comfortable year-round with solutions built for Connecticut’s climate.
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Local Professionals Serving Fairfield, Westport, Stamford & Greater Fairfield County
Alliance Heating And Air Conditioning has provided HVAC sales, service, repairs and maintenance to Fairfield, Westport, Stamford, Greenwich and surrounding Fairfield County areas since 1979.
Call 203.335.9464 today for prompt heating or AC service from local technicians.
Fairfield County Heating & Air Conditioning Services
Air Conditioner Repair
If your home’s air conditioning isn’t keeping you comfy, keep your cool and call Alliance Heating and Air Conditioning for fast repair services. Our AC repair experts will respond when promised and quickly determine what’s interfering with your comfort.
Heating Repair
When the temperature is dropping and the heater doesn’t seem to be up to the job, every homeowner wonders whether they should request a repair. If you’re uncertain, it’s usually a good idea to have a professional look at your system.
Air Conditioner Installation
Alliance Heating & Air Conditioning has the ideal air conditioning equipment for every home. We recommend and install America’s most trusted brands of air conditioners, because we’ve learned which brands and models are the most efficient and reliable for different types of homes.
Furnaces
Count on reliable and efficient heating by choosing a new furnace from Alliance Heating and Air. Many of today’s gas furnace models are more than 95% efficient, meaning they turn nearly all the natural gas they use into clean heat for your home.
Air Conditioner Tune-Up
if their air conditioners are not regularly maintained, they’re far more likely to break down. The fastest and easiest way to give your air conditioner the attention it needs to get you through the summer is by requesting Alliance Heating & Air Conditioning’s air conditioner tune-up.
Heating Tune-Up
The fastest, easiest, and most affordable way to make sure your heating system is ready for winter is with a heating tune-up from Alliance Heating & Air Conditioning. Our heating professionals follow our step-by-step approach to make sure your heating system can perform at its best.
Ductless Mini-Splits
Ductless mini-split systems are ideal for bringing affordable cooling and heating to rooms and additions that don’t have ductwork, and for enhancing the system in places you need extra year-round comfort.
Heat Pumps
Seeking an efficient way to heat and cool your home? For most homes in our area, a heat pump is the smart choice. They provide reliable, low-cost performance whether the August sun is beating down or a cold breeze is blowing off the Long Island Sound.
Geothermal Heating & Cooling
Geothermal heat pumps both heat and cool a home. Best of all, they do it using what’s essentially free energy: the natural heating you’ll find under your backyard or pond. They’re efficient, quiet, built to last, and they’re much better for the planet we call home.

Financing
Alliance HVAC makes comfort affordable with flexible HVAC financing options in Connecticut. Spread out the cost of furnace, AC, or indoor air quality upgrades with convenient payment plans designed to fit your budget.
Our complete home Heating & Cooling solutions include:
- Heating and air conditioning repair, installation, and maintenance
- Heat pump and forced air system consulting
- Air handler maintenance and repairs
- Condenser unit repair and replacement cost quotations
- Freon measurement and maintenance
- Ventilation and indoor air quality
- Geothermal heating and water systems
What exactly is HVAC?
HVAC (heating, ventilating, and air conditioning; also heating, ventilation, and air conditioning) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. Refrigeration is sometimes added to the field’s abbreviation as HVAC&R or HVACR, or ventilating is dropped as in HACR (such as the designation of HACR-rated circuit breakers).
About Fairfield County
Fairfield County is the southwestern-most and most populous county of the U.S. state of Connecticut. As of the 2010 census, the county’s population was 916,829, estimated to have increased by 3.4% to 948,053 in 2015. The county contains four of the state’s largest cities (Bridgeport (1st), Stamford (3rd), Norwalk (6th) and Danbury (7th)), whose combined population of 433,368 is almost half the county’s. We also provide premium air conditioning services to Trumbull, CT.
The United States Office of Management and Budget has designated Fairfield County as the Bridgeport-Stamford-Norwalk, CT Metropolitan Statistical Area. The United States Census Bureau ranked the Bridgeport-Stamford-Norwalk, CT Metropolitan Statistical Area as the 57th most populous metropolitan statistical area of the United States as of July 1, 2012. The Office of Management and Budget has further designated the Bridgeport-Stamford-Norwalk, CT Metropolitan Statistical Area as a component of the more extensive New York-Newark, NY-NJ-CT-PA Combined Statistical Area the most populous combined statistical area and primary statistical area of the United States as of July 1, 2012.
Some of our vendor partners include Trane, Mitsubishi, Carrier and Climate Master
Call 203.335.9464 today for service or to request a custom quote for your Fairfield County home.
Frequently Asked Questions
Do you provide heating and air conditioning services throughout all of Fairfield County?
Yes. Alliance Heating & Air Conditioning serves homeowners and businesses throughout Fairfield County, CT. From coastal communities to inland towns, our technicians are familiar with the heating and cooling needs of homes across the county.
How quickly can you respond to service calls in Fairfield County?
Response times vary slightly by location and demand, but our team is based in Bridgeport and works daily throughout Fairfield County. We prioritize fast dispatch and clear scheduling so you’re not left waiting when comfort issues arise.
What types of heating and cooling systems do you service in Fairfield County homes?
We service and install gas furnaces, central air conditioners, heat pumps, and ductless mini-split systems. Our technicians are trained to work on both newer high-efficiency equipment and older systems commonly found in Fairfield County homes.
Do you offer emergency heating and air conditioning repair in Fairfield County?
Yes. We provide responsive emergency heating and cooling repair across Fairfield County when systems fail during extreme temperatures. If your heating or cooling system stops working, call 203-335-9464 and our team will work quickly to restore comfort.
How often should Fairfield County homeowners schedule maintenance?
Most homes in Fairfield County benefit from twice-yearly service — cooling maintenance in spring and heating maintenance in fall. Regular tune-ups help systems handle the region’s humid summers and cold winters more reliably.
Why choose a local heating and air conditioning company for Fairfield County service?
Working with a locally rooted company means faster response, better familiarity with regional weather demands, and recommendations tailored to homes in Fairfield County. Alliance Heating & Air Conditioning has served the Greater Bridgeport area since 1979, delivering solutions built for this region.









